Ask Different is a question and answer site for power users of Apple hardware and software. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have OS backup .dmg installation file. The problem is I have Windows 7 on my MacBook Air, and I do not have access to OS X to use Disk Utility to burn/restore the OS X image.

Is it possible to burn/restore .dmg file on usb stick from Windows?

share|improve this question

You dont need accessing it from windows.

Boot the computer holding the [option] key and choose the OSX recovery. Inside it there you'll have a very basic osx with its own Disk Utility to restore your DMG image to another USB.

share|improve this answer

Several programs that support opening DMG files:

7-Zip will let you unzip the files. You can rebuild and burn an ISO image from there.

A search around the web brought up TransMac as being able to directly burn a DMG to disk:

Same goes for UltraISO:

... but I've not tried them.

share|improve this answer
But I do not want to burn on a disk. I would like to put it on my USB stick. – Arturs Vancans Oct 26 '12 at 22:49
TransMac will allow you to create a bootable USB: USB Drive >> Format Disk >> Format with Disk Image, then select your DMG file. You can do it with the 15-day trial. – Evil Closet Monkey Oct 26 '12 at 23:24
Thank you. Will try it out! – Arturs Vancans Oct 27 '12 at 13:05
It does found he drive when I restart my Mac, but it cannot load the installation. It says "Your computer needs to be restared.." What could be the issue? – Arturs Vancans Oct 27 '12 at 15:02
Not sure. Give Rostol's solution a shot, I forgot about that little trick and it is a better suggestion then mine. – Evil Closet Monkey Oct 29 '12 at 4:44

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.